Mini-GBIC Interfaces
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
343
The 100FX/1000LX mini-GBIC complies with the 100FX-SMF standard. To use the 100FX/1000LX
mini-GBIC in 100FX-MMF operation, a minimum attenuation of 6 dB is required. After the mini-GBIC is installed,
connect a 6-dB attenuator to the transmitter side (Tx) of the mini-GBIC. Next, connect the attenuator to the
single-mode end of a mode conditioning patch cord. The mode conditioning patch cord transitions the mini-GBIC
from SMF to MMF operation.
When in SMF operation, 100FX-SMF or 1000LX, measure cable plant losses with a 1310 nm light source
and verify this to be within budget. When you calculate the maximum distance attainable using optical
cable with a specified loss per kilometer (for example 0.25 dB/km), Extreme Networks recommends that
3 dB of the total budget be reserved for losses induced by cable splices or connectors and operating
margin.
The 100FX/1000LX mini-GBIC detects link status based only on the presence of light in the receive cable.
Therefore, if a single strand is broken, the link partner on the other port will not detect link down.
100FX mini-GBIC
The 100FX mini-GBIC requires the software versions listed in Table 53 and Table 54. BlackDiamond and
Summit models that are not listed do not support the 100FX mini-GBIC.
Table 53: 100FX mini-GBIC software support in BlackDiamond 8800 series modules
(compatible modules listed only)
BlackDiamond 8800
series module
Required Software
G24x ExtremeXOS 11.4.3 or later for 11.4 stream
ExtremeXOS 11.5.2 or later
ExtremeXOS 11.6.1 or later
MSM-G8x ExtremeXOS 11.4.3 or later for 11.4 stream
ExtremeXOS 11.5.2 or later
ExtremeXOS 11.6.1 or later
G48Xa ExtremeXOS 11.6.1 or later
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